Radiator



. Jan. 2, 1934. A. M. MERfrzANoFF 1,941,705

RADIATOR Filed May 29, 1930 2 Sheets-Sheet l mcmnmcln 1. fClUEIEIEIEDEDDCIDEIDEIDDDEIEIDDIEIE WIW ,.L'

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Lljllfllll INVENTOR.

/4-5 ATTORNEY.

Jan. 2, *1934. A. M. MERTzANoFF RADIATOR Filed May 29, 1930 2Sheets-Sheet '2 NVENTR:

TTORNEY.

Patented Jan. 2, 1934 gUNITI-:D gs 'rxrss PATENT OFFICE y' RADIATOR y`Andr`M. Mertzanoff,' New York, N. Y. Application vMay 29, I 19,30.Serial No. 457,429

' s claims. (01251-136) My invention relates to improvements in radi.-Vators, and the same has for its object to profvide an extended surfaceradiator which is simple f 'in construction, inexpensiveto-"manufacture, and eiiicient in operation or use. 1 f

Further,A Ysaid* invention -has for its object to provide a radiator inwhich the heating element is formed of Vcast metal, and the extendedsurface elements formed of sheet metal and imbedded in Y the heatingelement. n f

Further, said invention has for its 'object to provide a radiator inwhich the heating element is of tubular form made of cast metal, and theextended surface elements formed of relatively thin sheet metal imbeddedin said heating element during the process of casting in -order tobecome-integral therewith.

Further said invention has for its object to provide a radiator in whichthe heating element is formed of cast metal and provided with aplurality of sheet metal ns which are united to the vheating element attheir points of contact therewith by an alloy possessing a lower meltingpoint thanv either said heating element or said 5 fins, and of higherthermal conductivity than either the heating element or the finsthereon.

Further, said invention has for its object `to provide a radiator inwhich the heating element is formed of cast metal, and provided with aseries of relatively-thin, parallel, sheet metal fins, provided alongthe portions which are imbedded in said heating element with copper`flange portion or eyelet which will form with either the metal of theheatingelement or the fins, or with both thereof van alloy of higherthermal conductivity than the heating element or the iins. f

Further, said invention has for its object to provide a radiator whichis of comparatively small size, and of ysuch shape that the same may bereadily introduced behind a partition or into an enclosure having arelatively long, narrow opening therein.

Other objects will in part be obvious and in part be pointedY outhereinafter. y

To the attainment of the aforesaid objects and ends Vmy inventionconsists in the novel features of construction, and in the combination,connection, and arrangement of parts hereinafter more fully describedand then pointed out in the claims.

In the accompanying .drawings- Figure 1 is a front face view showing oneform of radiator constructed according to and embodying my saidinvention;

, Fig. 2 is a vertical section on the line 2-2 of Fig. 1, showing indotted lines the manner of introducing the radiator into its recess vorniche; Fig. 3 is a perspective view of the radiator per se; f

Fig. 4 is a face view showing the 'construction of one of the sheetmetal disks orfins constituting the extended surface members;

Fig. 5 is a section of the same on of Fig. 4, and

Fig. 6 is a central longitudinal section showing the construction of theheating element and fins and manner of securing said fins to saidheating element, and vf Fig. 7 is a perspective view showing a simpli#iied form of radiator.

In said drawings 10 designates a radiator which may be disposed within ashallow recess or casing formed below a window, or Within a recess orniche 11 formed directly in the wall of a building and provided with acover or front 12, having a relatively narrow longitudinal inlet opening13 at its base, anda suitably shaped outlet opening 14 vat its top. Y, i

The radiator comprises a heating `element 15 of tubular formwhichis'made of cast iron, and provided at its opposite endswith hubs oriianges 16, and internal screw threads 16a for connection with a supplypipe 17, and a return pipe 18. The heating element is preferablycylindrical in form and is provided upon its outer surface,v between thehubs or iianges r16, with a series of equally spaced annular ribs orbeads 19 of substantially semi-circular cross-section having annularrecesses 20 therein within which are disposed the sheet metal disks orns 21 forming extended surface members.

The fins or extended surface members 21 consist each of a sheet orrelatively thin iron or other suitable metal having a substantiallycircular rear portion 22, and a front portion `consising of` two parts23, 23a disposed in two vertical planes. The lower part' 23a extendingto'a point about midway of the height of the radiator being disposed ina vertical plane a" short distance in front of the upper part 23 wherebyto produce ya stepped portion.

Each fn or extended surface member 21 is provided with one or moreapertures 24, to receive the heating element 15, and each iin or member15 is provided along the edge of said aperture 24 with a flanged memberor eyelet 25 which is made of any suitable metal, having a melting pointbelow that of the metal of which the heating element 15 and the fins ormembers 21 are formed preferably of copper which possesses the line 5-5higher thermal conductive properties, and possess the additionaladvantage of combining with the metal of said heating element 15 and ns21 to form an alloy and thereby producing a more perfect heat conductingconnection between the heating element and the edge of the aperture 21contacting therewith than that which would result ifrom the directcontact of the metal of the iin with thatof thezheating element.

In producing :a radiator according .to \my invention I first take a moldof suitable form and insert a series of sheet metal disks or ns 21having apertures therein provided along the edges of said apertures witha facing or eyelet of ,copper 25. I next insert a central core ofsmaller,I diameter than the apertures in saiddisks .or'ns through saidapertures and secure the same in position. The molten ironis=then pouredat one end into said mold to form the tubular heating element 15, hubsor flanges 16, and annular ribs -or beads f19.

Assoon as :themolten metalzcontacts .withthe '.edgesof thefins-alongatheapertures 24, thecopper facing eyelets 25, having a lowermelting .point-thanathat of vthe'iron, andof the fins 21 -the5said.eyelets :will `fuse and .combine with ,the metal of the:heatingYelement-,lBand ins 21to ,Sformztherewith Van .,alloy; of higher4thermal conductivity than either the heating elementyorthe fins.orgboth. The heating element Vl5 withY its angeszor hubs ,1'6 isgformedrwholly by, the cast metal.

The resultant structure will be anintegral'unit .withvthe ns21 rmlyimbedded further in the metal of the heating element ,'15,and inintimate heat conducting -relation thereto.

qIn the construction rillustrated at Fig. :7, fthe radiatorisshown inits simplest form and cornprising a cast metal tubular heatingk element15a, andaseries of rectangulardisks 21a forming ex- ,tendedsurfacemembers each of which is providedwith acircular, central yaperturehaving se cured therein a copper ,eyelet orfacing 25a, which ,whenbrought into contact with the molten iron or the annular ribs :191 ofthe tubular heating element will formv an alloy of higher Ythermalconductivity than the metal :of `the heating element .orithe disksforeither thereof and when the cast metal tubular *heating elementhasrcooled, the disks'or fins ywill have become integral with and.firmlypimbedded in the outerwall oftheyheating element. g Y. y

vIt will, of course,'be obviousthatfthe radiator describedherein ismerely for the vpurposes of f illustration, yand ,that the invention is:not limited to a single heating tube or element,fsince lany number ofsuch tubesor elements maybe employed depending upon the size oftheradiator, .or the purposes for which the same is tobe employed,andthat the disks or fins which are im- .bedded therein vmay 1 be round,.rectangular or of .any desired'outline or shape.

Having thus described my said-invention what I claimanddesire to secureby LettersPatent'is:

1. -A radiator :comprising a lheating element, and a series of extendedsurface Vmembers `arment, and a series of extended surface memberssurrounding the same; said radiator having a part of its frontkportiondisposed .in a `vertical plane parallel with and to the rear of theremainder of its said front portion, substantially .as specified.

3. A radiator comprising a tubular heating element, and a series ofextended surface members surroundingvthe same; said radiator having itsrear portion of substantially semi-circular formAin-'crossseciziomandhaving a part of its front Lportion disposed in aVertical plane parallel with and to the rear of the remainder of itssaid front portion, substantiallyras specified.

4. A; radiator Vcomprising atubulan heating'eler ment, andarseriesoiextended surface'members surrounding the same; saidmembershavingtheir corresponding edges arrangedfin two parallelzver- E ticalplanes, substantiallyfas.-specified.

.5. A .radiator comprising a castemetal-tubular heating element, andaseries-ofrelativelyfthin .metal extended surface members imbedded inVand surrounding the same; said members-havingfcertain of their=correspondingedges arranged -intwo ,parallel vertical planes,substantiallyasspecied.

'6. VA radiator comprising a ,tubular .heating .element, and r aseriesof Uextended "surface mem- Abers surrounding the fsame; saidmembers-fhaving .oneportion .of theiredges of substantialhT semicircularform, and anotherportion of Atheir edges disposed in two parallel,`.vertical planes,v :substantially -asspecified.

.7. A radiatorcomprising acast ,metal` tubular Iheating element, land a`-seriesof spaced, ,parallel sheetmetal.V extended surface-membersAsurroundy,ing the same and mbeddedtherein; fsjaidmem- :bers having oneportion :of their Aedges fof -sub stantially -semi-.circular-formfandanother portionof ltheiredges disposed inztwo parallel, ver-.tical.planes, substantiallyasjspecied. Y

f 8 A- radiator comprising a tubular: heatingf element, andfa series-ofextended surfacesmembers extending therefrom; saidmembers having their:corresponding -rearedges 10i substantially semicircular form, and their`respective,-forvvarddge Lportions=,disposed `in two; parallel vertical,planes .one above .the v other, substantially'as .-specied.

`9. A. radiator` comprising ay tubular heatmg-zele ment,land a series of:parallel -extended 3 surta/ce members arranged in spaced relationthereon; `said members lhaving .their `corresponding frear ledges ofsubstantially semifcircular form, 1and ftheir corresponding ,lower.lfront uedge portions .disposed .inra verticalfplane, fandftheirrespective upper front edge portions disposed'insavertical plane.disposed inwardly of fthe plane.of.said-lower edge portions,substantiallyasispeoied.

.ANDR M. -MERTZANQFE AHD5

